菱叶乌头 ling ye wu tou

Caudex unknown. Stem to 70 cm tall, ca. 4 mm in diam., glabrous, with leaves equally arranged along stem. Leaves shortly petiolate; petiole 1.4--3 cm, glabrous; leaf blade rhombic-ovate or narrowly ovate, 8.5--15.5 × 3.3--7 cm, leathery, glabrous, abaxially veins convex or not, margin undivided, base broadly cuneate or rounded. Inflorescence 2--3.5 cm, 1--3-flowered; rachis and pedicels sparsely spreading pubescent or pedicels glabrous; bracts oblong or subulate, 4--11 mm, glabrous. Pedicels 1.3--1.6 cm, with 2 bracteoles at middle or below; bracteoles subulate, 2--2.5 mm, sparsely pubescent or glabrous. Sepals blue, abaxially sparsely pubescent; lower sepals 1.4--1.5 cm; lateral sepals 1.5--1.6 cm; upper sepal cylindric-galeate, ca. 2.5 cm high, lower margin concave, 1.1--1.5 cm. Petals glabrous; lip ca. 5 mm; spur incurved, 2--3 mm. Stamens glabrous; filaments entire or 2-denticulate. Carpels 3, glabrous, or ovary sparsely pubescent. Follicles 1.7--1.8 cm. Seeds ca. 2.6 mm. Fl. Oct--Nov.

* On rocks, steep cliffs; 900--1200 m. Sichuan.